Material-handling apparatus



spt.14,.1926. 1,599,401 f l J.z A. AULD MATERIAL HANDLI NG APPARATUSFiled Feb. 27, 1925 'Pa-maa saai. 14,1926.

UNITED STATES .IorIN A. MILD, or ERIE, PENNSYLVANIA, AssIGNoR: froEeIEsTEELcoNs'rEUCTIoN coIfIrANY, or ERIE, PENNSYLVANIA, A conEoEATIoNorrENNsYLvaNIA.

MAIEEIAEHANDLING AEEAEATUS.

V11p-puma@ filed February a7, '1925,' seriaiNo. 12,039.

In handling'material such as aggregate for concrete batches there isusually a supply bin and a batch box receiving its supply lfrom thesuppiybin. The material is passed from the supply bin to the batch boxand thencut on by [a gate so that the batch box maybe dumpedindependently of the supply bin. rThe batch in the batch box ordinarilyrequires very accurate measurement and the ksizes of aggregateobstructin most structures the vclosing of the gate. the present invention thefree movement of the gate is provided for because any material which maybe pushed to one side in the closing of the gate is caught and carriedinto the batch box. Features and details of the invention will appearfrom the speciii cation and claims. l y

T he invention'is illustrated in the accom panying drawings as Jfollows:e

Fig. 1v is a vertical section on the line 1.*1 in Fig. 2.

Fig. 2 an end elevation `of the device. n

Fig/8 a plan view of the gate carrying roller.

VFig. 4t a side elevation of the same.

l marks the supply bin. This rhas the discharge opening 2 which iscontrolled by a gate 3. The supply bin ,is carried by the channels tsupported by a suitable frame. The gate has the upturned edges 5. Anangle iron 6 is secured to the upturned edges having one side of theangle extending outwardly and these outwardly extending plates aresupported by rollers 7. rlhe rollers 7 are pivoted on pins 7LL carriedby the channel 4 and a strap 8 'secured to thechannel. The gate ishandled by a link 9 from any convenient point of support.

, rlhe receiving box 10 is ordinarily carried 'by rods 11 by means ofwhich vit may be adjusted. It has the contractedv top 12 with the daringreceiving opening having the angle sides 13 and 1a, the side 13 beingpof sitioned relatively to the opening 2 to receive all the materialcoming from the bin through the opening Without loss of material overthetop of the side 13., in other words, it is so related with relationto the angle of repose and its distance from the discharge opening 2 sothat the flow of ma terial through the discharge opening isv stalled bythe filling of the batch box 10. The side 14 is rmore extended laterallythan the sideyl-S and apartition 15 is arranged in `With a positioncorresponding to the side 13 and in a position to receive the materialcoming from the opening 2, the part between the partition 15 and sidelain effect forms an auxiliary opening 16.. 4

rlhe Vgate slidesclosely under the lip of the wall of, thefopening 2.The other walls of the opening 2, however, do not! ex- 'Y APa'lraNTlOFFICE. f

tend down into contact with the gate 3 so that as the gate is movedfromopen position to closed position there is Ino obstruction to itsforward movement close enough to resuit in the'wedging of the 'particlesof aggregate along the front edge of the gate.

As the gate isA forced forward, however, through the pile of aggregatebetween the discharge opening 2 and the receiving opening a smallamount'of thel material will be pushed forward withthe Agate and in thepresent invention this is carried over the edge of the partition 15 anddeposited in the auxiliary passage 16.

In this way the least possible obstructionis opposed to the closing ofthe gate. .The

amount of material pushed over is almost exactly the same with eachclosing so that accurate measuring is accomplished and any materialpushed over is caught and received bv the batch box so that there is noaccumulation of this material from one batch vto terial pushed over inclosing the gate' and delivering the same to the box.

2. In a material handling apparatus, the combination of a supply binhaving a discharge opening; a gate controlling the discharge opening;and a batch box yhavinga Y hopper-shaped receiving opening registeringwith and adjacent to the discharge opening and having an auxiliaryopening separatedby a partition from 'the receiving opening adapted toreceive material pushed over, in closingy the Vgate and delivering thesame tothe box. y f 'y Y 3 Inra material handling apparatus,v thecombination of a supply bin having a dis- Chzng'e openlngge gatecontrolling the die charge opening, said gate being 1n slidingengagement with the side of the dischargev opening towzgid which ehegate is opened and spaced om the Wall of the discharge opening towardwhich the gate is closed; and a batch box having e receiving openingregistering with and adjacent to the dis- 10 change opening and anauxiliary opening at the side of ,the receiving opening toward which thegrate is closed, Said auxiliary `open-:y

ing being seperated 'from the receiving opening by e partition andreceiving Vmaterial pushed over in the closingof the gate and deliveringthe saine 'to the box.

)fn testimony whereof I have-hereunto set my hand.

JOHN A. AULD.

